Electric distribution system.



E. N. LAKE.

ELECTRIC DISTRIBUTION SYSTEM.

APPLIGATION FILED AUG. s1, 1912.

1,055,642, Patented Mar.11,1913.

" UNiTED -STATES PATENT OFFICE.

EDWARD NLAKE, o-F WINTHROP, MASSACHUSETTS.

ELECTRIC DISTRIBUTION` SYSTEM.`

To qll whom it may concern: a

Be it known that I, EDWARD LAKE, a citizen of the United States, residing at Winthrop, in the county of Suffolk and State of" Massachusetts, have invented an Improvement in Electric Distribution Systems, of Vwhich the following is a speciica- `tion.

In high tension electric systems Where large amounts of power are generated and distributed7 it is important. that the greatest care be exercised and provision adopted for safety, convenience and iexibility,` so as to guard against serious interruptions'in the service, and special attention has been given to the problem of grouping, protecting and` isolating the electric elements, so as to minimize the possibility ofbreakdowns and to limit their effects when they do occur to t-he smallest possible element or group. f

In power-stations and sub-stations compartments have been provided for the high tension bus-bars, said compartments having outlets for the`4 wires, and isolating barriers have been arrangedfbetween the Wires which serve asv supports for the bus-compartments. So far as I am aware, the bus-compartments have comprised sections composed of slabs of insulating material, such as soap-stone or concrete, said slabs being arranged in the form. of a square with their edges abutted to` gether, and the sections thus formed' are arranged in alinement and their ends abutted together. Compartments of this construction arev expensive, particularly on account of the necessity of making the edges and A, also the ends of the slabsfsuiiiciently true to form-ra tight joint when abutted together. Furthermore, the isolating barriers have usually been composed ot concrete and considerable time has been required for the concrete to set and mature, which time greatly impedes the work of the electricians who are installing the electrical equipment, and, as a result, such equipment cannot be installed until after-,a considerable period of time has elapsed, and .the delay necessitated by the employment of concrete` bar? riers is very objectionable as Well as expensive. Furthermore, the bus-compartments have been arranged one directlyabove the other, so that the top Wall of one compartment serves as the bottom Wall of the compartment above it, and the securing-means Specification of Letters Patent. Patentd Mar, 11, 1913, Application iiled August 31, 1912. Serial No. 718,012.

for the insulators arrangedin the compartments, extends through said Wall and hence s 1s exposed in the adjacent compartment,

which is objectionable.

high tension bus-compartments are formed of pipe-sections made quadrangular or other formin cross-section, and composed of vitrified clay, tile or other insulating refractory material, each sect-ion being integrally formed, and the sections comprislng each compartment are arranged in alinement', and vsome of them have an openmg in their side Wall. Said sections, when therein for the securing-means for the insulators, thereby avoiding the necessity of subsequently making such holes. The isolatingbarriers are or may be composed of bricks :tormed'vvith holes through them or recesses to receive `the ends of the pipe-seo. tions to conceal and thereby seal and protect the joints, so that each compartment is tightly closedY throughout its length, except vided.- The holes or recesses in Said barriers are Widely separated from each other, so that `theseveral bus-compartments are Widely separated from each; other, and beformed Withlair spaces, which is the preferable construction, although said* spaces `may be filled in. Said insulatingbarriers, however, may be composed of concrete and the ends of the pipe-sections` embedded therein, and in such case the advantages oit tightly closed, and Widely separated compartments for the high tension bus-bars are obtained, although considerable time is required to elapsebefore the electrical equipment can be installed.

jcolnpart'ments and insulating barriers. Fig. 2 1s a tranSi-'erse vertical sect-ion taken on Ythe dotted line 2-`2, Fig. 1.

10 represents the floor of a station and -12 an upright Wall which may or may not be employed. l

15 represents one of the isolating barriers, here shown as composed of brick, although it ymay be composed of other insulating refractory material such as concrete. Said barrier ismade as an upright wall, and has h'oles through it` for the high tension buscompartments. A plurality of barriers, are

employed, theybeing arranged at each side molded,'will have holes or recesses. formed,

y for the openings which are especially proj tween the compartments the barriers are Figure l isa front elevation of the busc In accordance Withthis lnvention, theV made of any other suitable shape to corre of the .outlets leading from the bus-compartments, thereby to isolate the wires by Walls of a substantial thickness.

are provided, arranged one above another,

as at 20, 21 and 22, and each bus-compart-- ment is composed of a plurality of pipe-sections made of vitritied clay, tile or other insulating refractory material, said sections being represented at 25,26 and 27. Vitried clay is especially .Well suited for the purpose of making the sections on\` account of its highly refractory roperty. Each section is integrally forme and Yvvhernmolded, holes or recesses may be formed tor the bolts or other securing means tor the insulators 40, Which support the bus-bars, which is anV 'advantage of using vitriiied clay or equivalent material. rThe sections are here shown as square incross-section but they may be spond with the shape oit the holes in or through thebarriers, Someot the sections of each bus-compartment have openings in their sidewalls, and, as here shown, the sections 27 are formed with a side opening 28 for the outlet of the vvires'BO, which are connected with the high tension bus-bars J joint beingj sealed.

31. 'llheseveral sections are or may be made of substantially the same length but longer thanthe distance between the barriers, so that the ends ot the sections vvill enter the holes in the barriers, to be embedded therein in order that the joints shall be concealed and thereby protected,-and resulting in the are supported by -their ends engaging or becoming embedded in the masonry. 'll`he buscompartments thusA produced are closed tightly with the exception'oit the openings especially provided. The `sections composing the bus-compartments fare short and hence can be conveniently handled, and the work canproceed rapidly to immediate completion in order that the electricians may immediately install the velectrical equipment.

rlhe several bus-compartments While arranged one above the other are widely separated rom each other, so that Wide spaces I As herey shown, three high tension bus-compartments ibsgjaeaa are produced between them, herein represented at 50, as air spaces although said spaces may be lled in if desired, and yet serve to Widely separate the bus-compartments from each other. Widely separating the several bus-compartments from each other is an important feature, particularly as contrasted With the usual method of arranging the said compartments in such manner that they adjoin.

, l claim :T-LY l 1; in anfelectrical distribution system, a

bus-compartment composed of a plurality` of pipe-sections arranged in alinement tor `the high tension bus-bars, each section being integrally Jtormed of refractory material, and the side Wall of some of the sec-1 tions having an opening, and isolating barriers of insulating refractory material supporting said sections having holes to receive the ends otthe sections, ysubstantially 'as described.

2. ln an electrical distribution system, a bus-compartment composed of a` plurality oit pipe-sections arranged in alinement Jtor the high tension bus-bars, each section being integrally formed of `retractory `innate- *rial and the side Wall oli some of the sections having an opening, and isolating barriers composed ot bricks, said barriers having holes through them'to receive the ends or' the sections, `substantially as described.l

3. ln an electrical distribution` system, a plurality ot high tension bus-compartments, each composed ot a plurality or' pipe-sections o' refractory material, and isolated barriers oit refractory material having widely separated holes to receive the ends of the sections ot the several bus-compartments, whereby said compartments are Widely separated from each other, substantially as described. f l y Y 1l. ln an electrical distribution system, a plurality of bus-compartments each composed of a plurality of pipesections of rea i'ractory material, and isolated barriers of,

refractory material for said sectionsc ary ranged with widely separated supports itor the sections of the several bus-compartments' and having air spaces arranged between the several bus-compartments, substantially as described, f v 1 y lln testimony whereof,l ll have signed my name to this speclication, inthe presence ot tvv'o subscribing witnesses.

Witnesses:

' B. d. Noms, l lll; B. DAVIS. 

